The third required file to open a project. It follow the same definition as the java manifest file.
It cannot be renamed or moved. It needs to be META-INF/MANIFEST.MF.
This is a simple text file that lists the files used in the project including the project registry and graph file.
A simple example of its content is:
Name: project.gs Content-Type: application/x-grogra-registry+xml Name: Model.rgg Content-Type: text/x-grogra-rgg; charset=UTF-8 Name: graph.xml Content-Type: application/x-grogra-graph+xml
Each file is mapped with its name and a MimeType (i.e. the explicit type of the file. Several files could have the same extension but be processed differently).